Spiders of the Yukon - Department of Biological Sciences

Spiders of the Yukon 101
254. Ozyptila sincera Kulczy:ski Holarctic, Boreal
Distribution: Alaska to Newfoundland, south to Colorado and Minnesota; Asia.
Yukon records: Dawson; Cultus Bay and Rat L., Kluane National Park; Carmacks.
Biological information: In moss in coniferous woods.
Taxonomic notes: Ozyptila sincera in North America comprises 2 subspecies, O. s. canadensis
Dondale and Redner from sphagnum bogs and O. s. oraria Dondale and Redner from the Atlantic
coast (Dondale and Redner 1978); both are judged to differ subspecifically from the Eurasian form.
255. Xysticus britcheri Gertsch Holarctic, Boreal
Distribution: Alaska to Newfoundland, south to North Dakota and New York; Siberia (Eskov 1988d;
Marusik 1988, 1989).
Yukon records: Several localities from McDougall Pass (67°42′N 136°29′W) and Trout L. (68°50′N
138°45′W) to Herschel Is. and km 465 Dempster Hwy.
Biological information: In moss in coniferous woods or among lichens on tundra.
256. Xysticus canadensis Gertsch Holarctic, Boreal
Distribution: Yukon to Newfoundland and northern New England; Siberia (Eskov 1985).
Yukon records: Swim Lks.; Whitehorse; North Fork Pass, Ogilvie Mts.
Biological information: On foliage of coniferous trees.
257. Xysticus chippewa Gertsch Nearctic, Boreal
Distribution: Yukon to eastern Ontario, south to North Dakota and Michigan.
Yukon records: Swim Lks.
Biological information: On herbs and shrubs.
258. Xysticus cunctator Thorell Western Nearctic, Unassigned to zone
Distribution: Yukon to Saskatchewan, south to Washington and southern Alberta.
Yukon records: Carcross; Cultus Bay and Sheep Mt., Kluane National Park; Carmacks.
Biological information: On dunes and sagebrush slopes.
259. Xysticus deichmanni Soerensen Nearctic, Arctic
Distribution: Alaska to Greenland, south to Baffin Island.
Yukon records: km 155 and 465 Dempster Hwy.; Boulder Cr., Barn Mts. (60°26′N 138°05′W); Timber
Cr., British Mts. (60°25′N 104°W); Richardson Mts.; Herschel Is.
Biological information: On gravel or among stones on tundra.
Taxonomic notes: This species is regarded as a close relative of X. albidus Grese of Eurasia, and some
or all Eurasian literature records of X. deichmanni are in error for the latter. Hence we regard
X. deichmanni as Nearctic.
260. Xysticus durus (Soerensen) Nearctic, Subarctic/Alpine
Distribution: Yukon to Greenland, south to Colorado and northern Quebec (Reeves et al. 1984).
Yukon records: Old Crow; Cultus Bay, Kluane National Park.
Biological information: On tundra.
261. Xysticus emertoni Keyserling Holarctic, Boreal
Distribution: Alaska to Newfoundland, south to New Mexico, Texas, and Georgia; Scandinavia, Siberia.
Yukon records: Many localities from southern border to Dawson and km 438 Dempster Hwy.
Biological information: In moss and litter under shrubs and trees.
262. Xysticus ferox (Hentz) Nearctic, Boreal
Distribution: Alaska to Nova Scotia, south to Texas and Georgia.
Yukon records: Swim Lks.
Biological information: Under logs and stones.
263. Xysticus keyserlingi Bryant Nearctic, Subarctic/Alpine
Distribution: Yukon to northern Manitoba, south in the Cordillera to New Mexico and in the east to
Mount Washington, New Hampshire (Reeves et al. 1984).
Yukon records: km 16 Canol Rd., 1330 m elevation; km 155 and 260 – 270 Dempster Hwy.; Bluefish
Ridge (67°08′N 140°46′W).